122 entries under monotonous topic. ×

8
dismal(adjective, dull, flat, gloomy, miserable)
8
exhausting(adjective, dull, boring, irritating)
8
laborious(adjective, dull, hard, difficult, tender)
8
mundane(adjective, boring, dull, stupid, lifeless)
8
pedestrian(adjective, dull, simple, plain, heavy)
7
annoying(adjective, dull, boring, dreary)
7
blah(adjective, dull, weak, simple, flat)
7
stupid(adjective, dull, simple, flat, slow)
7
trite(adjective, dull, simple, flat, plain)
7
weariful(adjective, dull, simple, excite, boring)
6
common(adjective, boring, dull, flat, ordinary)
6
endless(adjective, dull)
6
long-drawn-out(adjective, dull, boring, late, dreary)
5
deadly(adjective, dull, dry, boring, dreary)
5
hackneyed(adjective, dull, simple, flat, plain)
5
mortal(adjective, dull, weariness)
5
repetitive(adjective, dull, flat, ordinary, dry)
5
spiritless(adjective, dull, weak, stupid, boring)
5
tired(adjective, dull, flat, ordinary, dry)
4
characterless(adjective, dull, flat, stupid, boring)
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APASmart Define. (2015). tedious thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/tedious/thesaurus/synonyms
ChicagoSmart Define. 2015. "tedious thesaurus" https://smartdefine.org/tedious/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, tedious thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/tedious/thesaurus/synonyms>.
MLASmart Define. "tedious thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/tedious/thesaurus/synonyms>